Eaton Detroit Locker Differential

1994–2010 Dodge Ram 1500 / 1994–2000 Dodge Ram 2500 / 1994–2010 Dodge Viper / 1997–2010 Dodge Dakota / 1998–2009 Dodge Durango / 2003–2005 Dodge Neon SRT-4 / 2003–2010 Dodge Viper SRT-10 / 2004–2006 Dodge Ram 1500 SRT-10 / 2005–2010 Chrysler 300 / 2005–2008 Dodge Magnum / 2006–2010 Dodge Charger / 2008–2010 Dodge Challenger

187C172A

Overview:

The Eaton Detroit Locker Differential is a robust, 100% automatic locking rear differential designed to deliver superior traction for a wide range of Dodge and Chrysler vehicles from 1994 to 2010. Engineered to maintain power to both wheels, even when one wheel loses contact with the ground, this differential is ideal for drivers seeking enhanced off-road capability, improved handling, and reliable performance in challenging driving conditions.

Its maintenance-free, clutchless design ensures hassle-free operation, while its bulletproof construction guarantees durability under mild to extreme vehicle applications. Whether you’re tackling rugged terrain or navigating slippery roads, the Detroit Locker Differential provides consistent, dependable traction without any driver intervention.

Key Features:

Built to maximize traction and reliability, the Eaton Detroit Locker Differential offers the following key features:

• 100% automatic locking mechanism engages without driver input
• Works seamlessly in both forward and reverse directions
• Clutchless, maintenance-free design reduces upkeep and wear
• Compatible with 31 spline axle shafts and 1.32-inch axle shaft diameter
• Supports ring gear pinion ratios ranging from 2.76 to 4.56
• Fits rear 9.25-inch differentials commonly found in Dodge and Chrysler models
• Engineered for unmatched strength and durability under demanding conditions
• Provides maximum traction to both rear wheels, enhancing vehicle control

Construction & Design

The Detroit Locker Differential is crafted from high-grade materials designed to withstand the rigors of off-road and high-performance driving. Its internal locking mechanism is engineered to engage automatically, ensuring both wheels receive power simultaneously. This clutchless design eliminates the need for manual locking or complex maintenance, providing a reliable and long-lasting solution for traction enhancement.

The differential’s internal components are precision-machined for optimal fit and function, delivering smooth operation and durability. Its robust construction supports a wide range of ring gear ratios and axle configurations, making it a versatile upgrade for many Dodge and Chrysler rear-wheel-drive vehicles.

Installation & Fitment

The Eaton Detroit Locker Differential is designed as a direct fit replacement for rear 9.25-inch differentials on select Dodge and Chrysler models. Installation typically requires standard differential service procedures and should be performed by a qualified technician to ensure proper setup and preload adjustments. No modifications to the axle or suspension are generally necessary, making it a straightforward upgrade for enhanced traction.

Compatible vehicles include popular models such as the Dodge Ram 1500 and 2500 (1994–2010), Dodge Viper (1994–2010), Dodge Dakota (1997–2010), Dodge Durango (1998–2009), Chrysler 300 (2005–2010), and others listed above. Always verify fitment with your specific vehicle year and model before purchase.

What's Included:

• Eaton Detroit Locker Differential assembly (31 spline, rear 9.25-inch)
• Installation instructions and technical specifications
• Seals and gaskets as required for installation

Ideal For:

This differential is perfect for enthusiasts and professionals who demand maximum traction and durability from their rear differentials. It is especially suited for off-road drivers, performance enthusiasts, and anyone looking to improve their vehicle’s capability in low-traction environments without sacrificing drivability or requiring manual locking controls.

Eaton produces well-known performance drivetrain solutions—especially differentials and supporting install components—designed to help put power down more effectively. Eaton is also recognized for performance automotive supercharger technology (including TVS systems) used in various high-performance applications where consistent airflow and traction are critical.